Click the button next to your desired firmware version. You will usually see two file types:
You must have a registered account. While anyone can create an account, you generally need an active FortiCare Support Contract linked to your hardware serial number to access the firmware download section. Steps to Download: Log in to the Support Portal. Navigate to Support > Firmware Download in the top menu. download fortios firmware
If your support contract has lapsed, you will likely be restricted from downloading newer versions of the firmware. You will only have access to the firmware versions released during your active support period. Click the button next to your desired firmware version